MarkupExtensionReturnTypeAttribute Class

 

Reports the type that a markup extension can return.

Namespace:   System.Windows.Markup
Assembly:  System.Xaml (in System.Xaml.dll)

System::Object
  System::Attribute
    System.Windows.Markup::MarkupExtensionReturnTypeAttribute

[AttributeUsageAttribute(AttributeTargets::Class, AllowMultiple = false, 
	Inherited = true)]
public ref class MarkupExtensionReturnTypeAttribute sealed : Attribute

NameDescription
System_CAPS_pubmethodMarkupExtensionReturnTypeAttribute()

Initializes a new instance of the MarkupExtensionReturnTypeAttribute class.

System_CAPS_pubmethodMarkupExtensionReturnTypeAttribute(Type^)

Initializes a new instance of the MarkupExtensionReturnTypeAttribute class using the provided Type.

System_CAPS_pubmethodMarkupExtensionReturnTypeAttribute(Type^, Type^)

Obsolete. Do not use, see Remarks.

NameDescription
System_CAPS_pubpropertyExpressionType

Obsolete. Do not use; see Remarks.

System_CAPS_pubpropertyReturnType

Gets the MarkupExtension return type that this .NET Framework attribute reports.

System_CAPS_pubpropertyTypeId

When implemented in a derived class, gets a unique identifier for this Attribute.(Inherited from Attribute.)

NameDescription
System_CAPS_pubmethodEquals(Object^)

This API supports the product infrastructure and is not intended to be used directly from your code. Returns a value that indicates whether this instance is equal to a specified object.(Inherited from Attribute.)

System_CAPS_pubmethodGetHashCode()

Returns the hash code for this instance.(Inherited from Attribute.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodIsDefaultAttribute()

When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class.(Inherited from Attribute.)

System_CAPS_pubmethodMatch(Object^)

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.(Inherited from Attribute.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute::GetIDsOfNames(Guid%, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute::GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute::GetTypeInfoCount(UInt32%)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from Attribute.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_Attribute::Invoke(UInt32, Guid%, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from Attribute.)

A MarkupExtension derived custom class should apply this .NET Framework attribute to indicate a possible type-safe return type that is returned by its ProvideValue implementation. In other words, if a markup extension always returns a more specific type than type of Object, and casting to that type is a primary scenario, the markup extension class should attribute with MarkupExtensionReturnTypeAttribute and report that type.

In previous versions of the .NET Framework, this class existed in the WPF-specific assembly WindowsBase. In .NET Framework 4, MarkupExtensionReturnTypeAttribute is in the System.Xaml assembly. For more information, see Types Migrated from WPF to System.Xaml.

For more information on patterns for implementing a custom XAML markup extension, see MarkupExtension and Type Converters and Markup Extensions for XAML.

.NET Framework
Available since 3.0

Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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